$ Network Security

I specialize in securing networks and systems by identifying vulnerabilities, hardening configurations, and preventing real-world cyber threats.
Beyond testing in labs, I also maintain my own personal server and home network, where I practice applying security principles, monitoring traffic, and ensuring stability under real conditions.

> Technologies & Tools

1. Network Scanning & Analysis → Nmap, Wireshark, tcpdump
2. Vulnerability Assessment → OpenVAS, Nessus, Nikto
3. Penetration Testing → Metasploit, Burp Suite, Hydra
4. Hardening & Defense → UFW, iptables
5. Server & Network Maintenance → Docker, Apache, MariaDB, SSH, Proxys

> Methodologies

1. Reconnaissance & Mapping → Identify devices, services, and configurations.
2. Scanning & Vulnerability Assessment → Check for weaknesses in systems and networks.
3. Exploitation (Red Team Simulation) → Controlled testing of vulnerabilities.
4. Mitigation & Hardening → Apply patches, configure firewalls, IDS/IPS.
5. Monitoring & Maintenance → Log analysis, uptime monitoring, and continuous updates.
6. Practical Server/Network Management → Regularly update and secure my personal home server and network infrastructure.

> Projects / Experience

1. Penetration testing at Câmara de Abrantes (Red Team role).
2. Setup of a Docker-powered local dev environment for web apps.
3. Personal home server running Docker, Apache, and MariaDB, with secure remote access.
4. Network monitoring & hardening of my own LAN (firewalls, Proxys, IDS).